█ Kage Den 〩 Tsu █

A dark-haired anime girl with a white mask covering her mouth stands in a dimly lit, gothic environment with large, arched windows and floral patterns, her expression shifting from neutral to a slight smile as she holds a handgun, while the scene cuts to a close-up of a character's wide, red eyes and then to a distorted, shadowy figure with a skull-like face.